Composition of matter.



No Drawing.

' uurrnn sraras ra'rnnr v orat on EDWARD ARMSTRONG, F BROOKLYN, NEW YORK.,

I COMPOSITION or MATTER.

To all whom it may concern Be it known that I, EDWARD ARMSTRONG,

[a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Compositions of Matter, of which the following is a specification:

This invention relates to a compgsition of matter and its object is to provide'a substi tute for wood used for 'wood cuts, wood engraving and wood type used in the printers trade.

Another object of the invention is to provide a substitute for rubber tympan or blankets used on printing presses.

Another object of the invention is 'toprovide a material for either of the purposes above mentioned which may be used over 1 will state the ingredients and the propor portions will be slightly varied as'followszand'recasting.

"mess of the material formed, it

, derivable from and over again times withoutnumber, after having been discarded, simply by remelting With'the above and other objects in view I have invented the following composition of-matter which I have found from actual and most successful experiments will do just what I claim forit.

By compounding the ingredients to be stated a new article of manufacture will be produced. For the purpose of illustration I tions necessary to attain two degrees of hardbeing understood that the roportions may be varied without sacrificing anyof the advantages Jribed. v

The material for printing cuts may be compounded as follows having the consistency required for molding :32 parts of gelatin or glue, 11 partsof wax of any color, 7 parts of tannic acid, 27 parts of milk or water, 9 parts of linseed oil, 'parts of-banana oil, 10 parts of molasses.

To obtain an extra hard material the pro '36 parts ofgelatin or glue, 12 parts of wax of any color, 8 parts of tannic acid, 24 parts of milk or water, 8 parts of linseed oil, 4 parts of banana oil, 8 parts of molasses.

While the use of the above ingredients in the proportions stated or there-abouts is sufficient to compound the material, one or more of the ingredients may be omitted and the compound to be de- Specification of Letters Patent.

Application filed February 14, 1911. Serial No. 608,555.

Patented ocaraieia.

equivalents substituted working equally well.

By using banana oil for example, I find it a reducer and a drier and it also helps to make the compound waterproof, but it may be eliminated without detriment. Similarly, water maybe usedwithout milk, or milk Without water, although by using-skimmed milk it assists in making the compound Waterproof.

The present method of making large wood I cuts from which posters and the like are printed is to carve the wording and illustrations, ornaments, illuminating add signs, into the upper surface of large blocks of wood, which after the one job is completed, are of no further use. This constant destruction of good material is very expensive and greatly increases the cost of such Work. a

With theuse of my composition, thesame wooden bases and the carved compound. may

be used as many times as desired, thus saving a very large expense.

I compound the ingredients in the proper manner and form sheets of the material about one-eighth to one-fourth of an inch thick. These sheets are tacked on,or'otherwise secured to wooden bases and the surface of the material may then be carved in thesame manner that wood cuts are carved. After these cuts have been discardedthe.

carved material may be separated from the wooden bases and recast and remouuted upon the same bases, after which it can again be carved. This operatlon may be repeated continually without affecting the quality EDWARD ARMSTRONG: VVit/nesses:

J osnrn DUGAN, CoRNnmUs Dbrrsnrr.

desire secure by Letters I 

